Manufacturer Part Number
LTC4054LES5-4.2#TRPBF
Manufacturer
Analog Devices
Introduction
Linear battery charger for single-cell lithium-ion batteries in a TSOT-23 package
Product Features and Performance
Efficient charging of single-cell lithium-ion batteries
Automatic recharge feature
Thermal regulation to optimize charge rate under all conditions
Undervoltage lockout
Soft-start limits inrush current
Product Advantages
Compact SOT-23-5 package suitable for space-constrained applications
Integrated power and thermal management for safe operation
Charging current is programmable with a single external resistor
Charger requires minimal external components, simplifying design
Key Technical Parameters
Battery Chemistry: Lithium Ion
Number of Cells: 1
Constant Charge Current: Programmable
Charge Current - Max: 150mA
Battery Pack Voltage: 4.2V
Voltage - Supply (Max): 6.5V
Operating Temperature Range: -40°C to 85°C
Mounting Type: Surface Mount
Quality and Safety Features
Thermal feedback regulates charge current to limit the die temperature during high power operation or high ambient temperature conditions
Integrated thermal regulation to prevent overheating
Compatibility
Designed for single-cell lithium-ion batteries
Compatible with surface mount technology for PCB assembly
Application Areas
Portable electronics
Wearable devices
Small consumer electronics products requiring battery charging
Product Lifecycle
Active product status, not currently nearing discontinuation
Long-term availability and support can be anticipated
Several Key Reasons to Choose This Product
Optimal choice for single-cell lithium-ion battery charging applications requiring compact size
Low component count enhances reliability and simplifies design integration
Thermal protection features ensure stability and safety
Customizable charging profile can be achieved through a single external component
Well-suited for automated, high-volume production due to Tape & Reel packaging
Broad operating temperature range suits a variety of operating environments
LTC4054LES5-4.2#Linear Technology / Analog Devices
LTC4054LES5-4.5TRLT